Adjusting the velocity according to scenarshooters real world data of 3150 for the 6.5 SAUM and 2850 for the 260 would tighten the numbers a bit.
Still 300 fps.
I haven't ran them over a chrono. I'll find the velocity when I get a chance to shoot them out to 1200 or so, and a few random ranges in between. My 139 scenar load gave 2850fps in the same rifle, with 1/10gr less powder. I'll bet 2900fps is achievable....I used my 139 scenar range card for 503M and these 136's shot the exact same. I expect them to shoot flatter as the range increases.
260 @ 2850
Range Drop (in) Drop (MOA) Windage (MOA) Velocity
600 -0.0 -0.0 23.5 3.7 1947.4
1290 -464.2 -34.4 142.7 10.6 1121.7
6.5 SAUM @ 3150
Range Drop (in) Drop (MOA) Windage (MOA) Velocity
600 -0.0 -0.0 20.1 3.2 2192.8
1470 -580.9 -37.7 168.2 10.9 1117.7
